. >> that was carolyn johnson reporting. prp is being used in conjunction with some hair transplant procedures, but there's no long-term research proving it works. >> 9:44 now. big day ahead. folks gearing up for the niners game. the temperatures? >> well, i knew you would ask that. almost ten degrees below average. we will be once again in the upper 40s. right now we are almost at 40 degrees with a little hazy sunshine. it's a spare-the-air day today. a freeze warning again tonight. but pour san francisco we will talk about the warmup when we return. >> thank you, lisa. stanford has done it again. manhandling arizona state again in the pac-12 title uncle go one,two,one,two,one [uncle]thistwo,one.cotch,okay? [niece]okay! [uncle]okay? [niece]one,two three,four,five,six,seven,eight! [uncle laughing] okay,we go the other way,okay? [niece]one,two,three,four,five, six,seven! [uncle laughs]there's ten spaces,you want to try again? [uncle]yeah? >> welcome back. coming up on 9:47 on this sunday morning. look at this gorgeous picture